JPH0565273B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a laser processing machine that can efficiently process a large number of workpieces.

(b) Conventional technology Conventionally, in order to process a large number of workpieces with a laser processing machine, the workpieces are first mounted on the table of the laser processing machine, and in this state, the table and the torch supported above the table are moved as appropriate. Move and drive
At the same time, a laser beam is emitted from the tip of the torch toward the workpiece to cut the workpiece. next,
The processed workpiece is carried out of the laser processing machine, and then the next workpiece to be processed is mounted on a table, and the workpiece is processed using a torch. This process is repeated.

(c) Problems to be solved by the invention However, with this method, processing with the torch cannot be started until the processed workpiece is carried out from the table and the next workpiece to be processed is mounted on the table. Therefore, it has the disadvantage of poor processing efficiency. In particular, when taking a large number of workpieces, it takes a lot of effort to carry out the processed small workpieces, which further deteriorates the processing efficiency.

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned drawbacks, it is an object of the present invention to provide a laser processing machine that can continuously process a large number of workpieces and improve processing efficiency.

(d) Means for solving the problem That is, the present invention has a fixed guide means 7, and a first table 9 is mounted on the fixed guide means 7.
A second table 6 is provided on the moving guide means 5 so as to be movable between the two positions X1 and X2, and a moving guide means 5 is provided so as to be freely movable between the two positions X1 and X2. Further, table driving means 10, 10f, 11 are provided between the first and second tables 9, 6.

Note that numbers in parentheses indicate corresponding elements in the drawings. This description is for convenience only, and therefore, the present description is not limited to the description in the drawings. The same applies to the column "(e) Effect" below.

(e) Effect With the above-described configuration, the present invention allows the movement guide means 5 to be raised and lowered, and the table drive means 10 and 1 to be moved up and down.
By driving 0f, 11, the first and second
The tables 9 and 6 are exchanged between the two positions X1 and X2.

(f) Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings.

1 to 3 are diagrams showing the table exchange operation of the laser beam machine according to the present invention, and FIG. 4 is a perspective view showing an embodiment of the laser beam machine according to the present invention.

As shown in FIG. 4, the laser processing machine 1 has a body 2, and an opening 2 is provided at the upper part of the body 2 in the figure.
(FIG. 4 shows a state in which tables 6 and 9, which will be described later, are positioned in the opening 2a.) In addition, as will be described in detail later, in the fuselage 2, a table 6 is driven to move in the directions of arrows A and B, which are vertical directions in the figure, and in arrows C and D, which are horizontal directions. It is freely supported, and furthermore, on the right side of the figure of fuselage 2,
A column 12 is provided so as to be movable in the directions of arrows C and D. The column 12 has a laser processing head 15 with a torch 13 attached to the lower end in the figure.
It is supported so as to be movable and driven in the directions of arrows E and F, which are perpendicular directions to the directions of arrows C and D. Furthermore, an automatic workpiece supply device 16 is provided on the left side of the laser processing machine 1 in FIG. It is being The automatic work supply device 16 has a column 16c, and a head 16b having a work holder 16a at its tip is supported by the column 16c so as to be movable in the directions of arrows E and F. A workpiece holder 16d is provided below the column 16c in the figure, and a plurality of plate-shaped works 17 are mounted on the workpiece holder 16d in a stacked manner.

By the way, as shown in FIG. 1, the body 2 is formed entirely in a box shape, and drive cylinders 3, 3 are provided on the bottom surface 2b of the body 2. Each drive cylinder 3 supports a rod 3a so as to be able to protrude and retract in the directions of arrows A and B, which are vertical directions in the figure, and a guide rail 5 is provided between the rods 3a. A table 6 is mounted on the upper surface 5a of the guide rail 5 at its lower end 6b in the figure.
It is supported so as to be movable and driven in the directions of arrows C and D via a roller 6c rotatably provided at
A workpiece mounting surface 6a is formed at the upper part of the table 6 in the figure. Furthermore, an engagement plate 6e is fixed to the side surface 6d of the table 6, and a groove 6f is formed in the engagement plate 6e in the directions of arrows A and B.

In addition, the left end 2c and the right end 2d of the fuselage 2 in FIG.
A fixed guide rail 7 is provided between them.
On the upper surface 7a of the fixed guide rail 7, a table 9 having a workpiece mounting surface 9a formed thereon is movably driven in the directions of arrows C and D via a roller 9c rotatably provided at its lower end 9b. is supported by Further, an engagement plate 9e is provided on the side surface 9d of the table 9, and a groove 9f is bored in the engagement plate 9e in the directions of arrows A and B.

Incidentally, an engagement chain body 10 is provided above the fuselage 2 in FIG.
0 has two sprockets 10a and 10b which are rotatably supported by the fuselage 2 in the directions of arrows G and H. An endless chain 10c is stretched between the sprockets 10a and 10b, and the chain 10c has two engaging pins 10.
d and 10e are fixed at a predetermined distance apart.
Note that the engagement pin 10d is connected to the engagement plate 6 of the table 6.
The engagement pin 10e is slidably fitted into the groove 6f of the engagement plate 9e of the table 9 and the groove 9f of the engagement plate 9e of the table 9. Further, a drive device 11 such as a motor is provided below the sprocket 10b in the figure, and the drive device 11 has a sprocket 11a connected to the sprocket 11a.
is supported rotatably in the directions of arrows G and H. An endless chain 10f is stretched between the sprocket 11a and the shaft 2e on which the sprocket 10b is attached via a sprocket (not shown) fitted onto the shaft 2e.

Since the laser processing machine 1 has the above configuration, when processing the workpiece 17, the workpiece 17 to be processed is first placed at the setup position X1 shown in FIG.
The automatic workpiece supply device 16 is used to place the workpiece on the workpiece mounting surface 9a of the table 9, which is positioned at the table 9. That is, the workpiece 1 on the workpiece holding table 16d
7 is adsorbed and held by moving the workpiece holder 16a of the head 16b in the B direction as appropriate, and in this state, the workpiece holder 16a is raised together with the workpiece 17 by a predetermined distance in the A direction. Next, head 16b
by appropriately moving the workpiece 17 in the direction of arrow F and further moving the workpiece holder 16a in the direction of arrow B to place the workpiece 17 on table 9.
The workpiece is mounted on the workpiece mounting surface 9a. After the workpiece 17 is mounted on the workpiece mounting surface 9a, the adsorption state of the workpiece 17 by the workpiece holder 16a is released, and then the workpiece holder 16a is moved in the A direction and the head 16b is moved in the E direction as appropriate. , return it to the predetermined standby position. When the workpiece 17 is mounted on the workpiece mounting surface 9a, the drive cylinder 3 fixed to the bottom surface 2b of the machine body 2 is driven to move the rod 3a backward in the direction of arrow B, as shown in FIG. Then, the guide rail 5 provided between the rods 3a descends in the direction B together with the rods 3a. When the guide rail 5 descends in direction B,
The table 6 supported by the upper surface 5a of the guide rail 5 also descends in the direction B and is positioned a predetermined distance downward in the figure from the machining position X2 shown in FIG.

Next, in this state, the drive device 11 is driven to rotate the sprocket 11a in the direction of arrow H. Then, the sprocket 10b mounted on the shaft 2e of the engagement chain body 10 rotates in the H direction via the chain 10f. When the sprocket 10b rotates in the H direction, the chain 10c
Two engaging pins 10d and 10e fixed to 0c
At the same time, it turns in the direction of arrow J in the figure. Engagement pin 1
When 0d and 10e turn in the J direction, the workpiece 17
The table 9 is equipped with an engaging pin 10 that is slidably fitted into a groove 9f of an engaging plate 9e.
e, the setup position X is pushed along the upper surface 7a of the fixed guide rail 7.
1 toward processing position X2 in the direction of arrow D. The table 6 also has a groove 6f in the engagement plate 6e.
The engagement pin 10 is slidably engaged with the engagement pin 10.
d, the table 9 is moved in the C direction along the upper surface 5a of the guide rail 5 from the processing position X2 toward the setup position X1 while being pushed in the C direction.

At this time, as shown in FIGS. 1 and 2, the table 6 moves in the direction C with the workpiece mounting surface 6a etc. located below the lower end 9b of the table 9 in the figure. There is no interference between table 6 and table 9, and each table 6 and 9 moves smoothly.

In this way, as shown in FIG.
is moved in the D direction and positioned at the machining position X2, and when the table 6 is moved in the C direction and positioned a predetermined distance downward in the figure from the setup position X1, the drive cylinder 3 is driven. Then, the rod 3a is made to protrude in the direction of arrow A. Then, the guide rail 5 moves along with the rod 3a in the direction of arrow A.
the table 6 on the guide rail 5
is also raised in the A direction and positioned at the setup position X1. When the table 6 is positioned at the setup position X1, the workpiece mounting surface 6 of the table 6
A workpiece 17 to be processed next is loaded onto a by using the automatic workpiece supply device 16 described above.

Meanwhile, while the work 17 is being loaded,
The workpiece 17 on the table 9 positioned at the processing position X2 is processed. That is, the column 12 shown in FIG.
The laser processing head equipped with the laser processing head is moved and driven as appropriate in the directions of arrows E and F, and at the same time, a laser beam is emitted from the lower end of the torch 13 toward the workpiece 17 to cut the workpiece 17. In this way, when the predetermined processing is performed on the work 17 on the table 9 and the work 17 to be processed next is mounted on the work mounting surface 6a of the table 6,
Drive the drive cylinder 3 to move the rod 3a in the direction of arrow B.
move back in the direction. Then, the guide rail 5 becomes
It descends together with the rod 3a in the direction of arrow B, and the table 6 on the guide rail 5 carries the workpiece 17 to be machined next, as shown in FIG.
Descend in the direction of arrow B.

The table 6 descends in the direction B, and the setup position
1, drive the drive device 11 again,
Rotate the sprocket 11a in the direction of arrow G.
Then, the chain 10c of the engagement chain body 10
rotates in the direction of the arrow in the figure together with the engagement pins 10d and 10e via the chain 10f, sprocket 10b, etc. When the engagement pins 10d and 10e turn in the direction, the table 9 on which the machined workpiece 17a is mounted is moved from the processing position X2 toward the setup position X1 along the upper surface 7a of the fixed guide rail 7 via the engagement plate 9e. The table 6 moves in the C direction and carries the workpiece 17 to be processed next.
The table 9 is moved in the direction D along the upper surface 5a of the guide rail 5 via the engagement plate 6e from the setup position X1 toward the processing position X2.

The table 9 moves in the C direction to the setup position
1, the table 6 moves in the direction D, and when it is positioned a predetermined distance below the processing position X2, the drive cylinder 3 is driven to project the rod 3a in the direction of the arrow A. The guide rail 5 is raised together with the table 6 in the A direction. In this way, as shown in FIG. 3, when the table 6 moves up in the A direction and is positioned at the machining position The laser processing head 15 is appropriately moved and driven in the directions of arrows E and F, and at the same time, a laser beam is emitted from the lower end of the torch 13 in the figure to cut the workpiece 17.

Meanwhile, while the workpiece 17 is being cut, the table 9 is positioned at the setup position X1.
The machined workpiece 17a mounted on the workpiece mounting surface 9a is carried out of the laser processing machine 1 by an operator or the like. When the work to carry out the processed workpiece 17a is completed, the workpiece 17 to be processed next is mounted on the workpiece mounting surface 9a using the workpiece automatic supply device 16.

By repeating such a table exchange operation, etc., a large number of workpieces 17 are continuously machined.

(g) Effects of the Invention As explained above, according to the present invention, the fixed guide means such as the fixed guide rail 7 is provided, and the first table 9 is placed on the fixed guide means at the setup position X1 and the processing position X2. A movable guide means such as a guide rail 5 is provided so as to be freely movable between two positions, and a second table 6 is provided on the movable guide means so as to be movable between the two positions. Since table driving means such as a driving device 11, a chain 10f, and an engagement chain body 10 are provided between the first and second tables 9 and 6, the moving guide means can be moved up and down after processing the workpiece 17. By appropriately driving the table drive means, it becomes possible to immediately exchange the tables 6 and 9 between two positions such as setup position X1 and processing position It can be easily carried out, and immediately after finishing machining on one table 6 or 9, machining of workpieces 17 set up on the other table 9 or 6 can be resumed, and a large number of workpieces 17 can be processed continuously. Moreover, it can be processed efficiently.

[Brief explanation of the drawing]

1 to 3 are diagrams showing a table exchange operation of a laser beam machine according to the present invention, and FIG. 4 is a perspective view showing an embodiment of the laser beam machine according to the present invention. DESCRIPTION OF SYMBOLS 1... Laser processing machine, 5... Movement guide means (guide rail), 6... Second table (table), 7... Fixed guide means (fixed guide rail), 9... First table (table ), 10...
...Table driving means (engaging chain body), 10f
...Table drive means (chain), 11...Table drive means (drive device), X1...Setup position, X2...Processing device.

Claims (1)

[Claims] 1. A first table is provided on the fixed guide means so as to be movable between two positions, a movable guide means is provided so as to be movable up and down, and a second table is provided on the movable guide means so as to be movable between two positions. a table is provided movably between the two positions;
and a laser processing machine configured by providing a table driving means between the second table.